TW201027163A - Touch-control structure for a flexible display device - Google Patents

Touch-control structure for a flexible display device Download PDF

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Publication number
TW201027163A
TW201027163A TW098100458A TW98100458A TW201027163A TW 201027163 A TW201027163 A TW 201027163A TW 098100458 A TW098100458 A TW 098100458A TW 98100458 A TW98100458 A TW 98100458A TW 201027163 A TW201027163 A TW 201027163A
Authority
TW
Taiwan
Prior art keywords
touch
flexible
touch structure
display panel
flexible substrate
Prior art date
Application number
TW098100458A
Other languages
Chinese (zh)
Other versions
TWI393935B (en
Inventor
Kai-Cheng Chuang
Original Assignee
Prime View Int Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Prime View Int Co Ltd filed Critical Prime View Int Co Ltd
Priority to TW098100458A priority Critical patent/TWI393935B/en
Priority to US12/406,561 priority patent/US8842077B2/en
Priority to EP09155589.6A priority patent/EP2207079B1/en
Priority to JP2009082138A priority patent/JP5837274B2/en
Priority to KR1020090026993A priority patent/KR20100082286A/en
Publication of TW201027163A publication Critical patent/TW201027163A/en
Application granted granted Critical
Publication of TWI393935B publication Critical patent/TWI393935B/en

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
    • G06F1/1643—Details related to the display arrangement, including those related to the mounting of the display in the housing the display being associated to a digitizer, e.g. laptops that can be used as penpads
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
    • G06F1/1652—Details related to the display arrangement, including those related to the mounting of the display in the housing the display being flexible, e.g. mimicking a sheet of paper, or rollable
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0414—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/045—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using resistive elements, e.g. a single continuous surface or two parallel surfaces put in contact
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0481—Interaction techniques based on graphical user interfaces [GUI] based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance
    • G06F3/0482—Interaction with lists of selectable items, e.g. menus
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04102—Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper

Abstract

A touch-control structure for a flexible display device is provided. The touch-control structure comprises a flexible display panel, at least one menu display area, a touch film and at least one sensing element. The flexible display panel comprises a visible surface. The at least one menu display area is located on at least one side of the visible surface. The touch film comprises a first flexible substrate and an operating contact surface. The visible surface and the operating contact surface are disposed on the two opposite ends of the touch structure respectively. The at least one sensing element is disposed on at least one side of the first flexible substrate corresponding to the at least one menu display area.

Description

201027163 六、發明說明： 【發明所屬之技術領域】 本發明係關於一種觸控結構。更詳細來說，本發明係關於一種 應用於一可撓性顯示裝置之觸控結構。 【先前技術】 隨著科技進步，顯示裝置不斷地朝向輕薄之趨勢發展，以期減 少其佔用的空間與重量。與此同時，隨著人機介面的發展，觸控 式面板亦已成為相當普遍之輸入媒介。然，當顯示裝置愈顯薄型 化之同時，其輕薄之特性卻帶來了相對較為不足之結構強度。傳 統之薄型顯示器，例如液晶顯示器，主要係以玻璃作為基板，由 於玻璃材質之影響，其結構相當容易受到外力而形變，進而遭受 破壞。 由於傳統之薄型顯示器所具有的缺點，近年來，可撓性顯示面 板之發展即受到相當的重視。目前較常見之可撓性面板技術，例 如利用電子墨水（E-Ink)之電子紙技術，或利用有機半導體之有 機發光二極體顯示技術，均已相當程度地實現可撓性之薄型顯示 技術。然，若欲增加觸控功能於現有市面上的可撓性顯示裝置中， 則仍存在著相當程度的困難度。 用於傳統顯示器之觸控技術，例如電阻式或電容式觸控技術， 均係主要使用於如玻璃基板等之硬式基板。其中，在形成透明導 電膜時，需要使基板預先加熱至一較高之製程溫度，方能使透明 導電膜緊密地附著於基板之上。然，此一較高之製程溫度，將會 對普遍以有機塑膠材料製成之可撓性基板產生破壞，進而損毁觸 201027163 控功能。反之’若以較低之製程溫度形成透明導電膜，則易造成 透明導電膜之導電特性及光線穿透率下降，亦不容易附著於基板 之上，進而造成脫膜問題。因此，若要將透明導電膜形成於可撓 性基板之上，則仍存在著較高的技術門檻，也難以提升使用可撓 性基板之產品的製作良率。 此外，習知之觸控技術’係將觸控薄膜設置於顯示裝置之可視 面的前方。此種設置方式將造成顯示裝置之影像亮度衰減。雖然 ❹在具有自發光光源之觸控顯示裝置中，僅需要加強光源亮度即可 輕易克服觸控薄膜所造成的影像亮度衰減。然而在使用以環境光 源為主之非自發光顯示技術，例如電子墨水之電子紙技術，即需 考慮觸控薄臈之設置方式對於影像亮度之影響。 綜上所述，提供一種用於可撓性顯示裝置，同時亦能維持可撓 性顯示裝置之影像亮度的觸控結構，乃為此一業界期望達成之目 標。 【發明内容】 本發明之主要目的在於提供一種用於可撓性顯示裝置之觸控結201027163 VI. Description of the Invention: [Technical Field of the Invention] The present invention relates to a touch structure. More specifically, the present invention relates to a touch structure applied to a flexible display device. [Prior Art] With the advancement of technology, display devices are constantly moving toward a thin trend, with a view to reducing the space and weight occupied. At the same time, with the development of human-machine interface, touch panels have become a fairly common input medium. However, while the display device is thinner, its thin and light characteristics bring about a relatively insufficient structural strength. Conventional thin displays, such as liquid crystal displays, mainly use glass as a substrate. Due to the influence of the glass material, the structure is quite susceptible to deformation by external forces and damage. Due to the shortcomings of conventional thin displays, the development of flexible display panels has received considerable attention in recent years. At present, the more common flexible panel technology, such as electronic paper technology using electronic ink (E-Ink), or organic light-emitting diode display technology using organic semiconductors, has achieved a considerable degree of flexible thin display technology. . However, if the touch function is to be added to the existing flexible display device on the market, there is still a considerable degree of difficulty. Touch technologies for conventional displays, such as resistive or capacitive touch technologies, are mainly used for rigid substrates such as glass substrates. Wherein, in forming the transparent conductive film, it is necessary to preheat the substrate to a higher process temperature so that the transparent conductive film closely adheres to the substrate. However, this higher process temperature will cause damage to the flexible substrate generally made of organic plastic materials, which will damage the 201027163 control function. On the other hand, if a transparent conductive film is formed at a low process temperature, the conductive property and light transmittance of the transparent conductive film are liable to be lowered, and it is not easy to adhere to the substrate, which causes a problem of release. Therefore, if a transparent conductive film is formed on a flexible substrate, there is still a high technical threshold, and it is difficult to improve the production yield of a product using a flexible substrate. In addition, the conventional touch technology has a touch film disposed in front of the visible surface of the display device. This type of setting will cause the image brightness of the display device to decay. Although in a touch display device having a self-luminous light source, it is only necessary to enhance the brightness of the light source to easily overcome the image brightness attenuation caused by the touch film. However, in the use of non-self-luminous display technology based on ambient light sources, such as electronic ink electronic paper technology, it is necessary to consider the influence of the setting method of the touch thin film on the brightness of the image. In view of the above, it is an industry desired to achieve a touch structure for a flexible display device while maintaining the image brightness of the flexible display device. SUMMARY OF THE INVENTION A primary object of the present invention is to provide a touch junction for a flexible display device

構’其具有結構簡單及製作容易之優點，同時亦不會影響可挽性 顯示裝置之影像亮度。 B 為達到上述目的，本發明提供一種觸控結構。該觸控結構包含 -可撓性面板、至少-選單顯*區域…觸控相以及至少一感 測元件。該可齡㈣面板具有—可視面。該至少—選單顯示區 域係位於該可視面之至少—侧。該觸控薄膜具有—第—軟性基板 及-操作接觸面，其中，該可視面以及該操作接觸面係設置於該 201027163 觸控結構之相對二端。最後，該至少一感測元件則相應該至少一 選單區域而設置於該第一軟性基板上之至少一侧。 綜上所述，本發明之觸控結構具有結構簡單及製作容易之優 點，且由於其觸控薄膜係設置於可撓性顯示裝置之可視面的後 方，因此亦不會降低可撓性顯示裝置顯示之影像的亮度，進而克 服習知之觸控技術僅能使用於硬式基板且使用習知之觸控技術的 顯示裝置之影像亮度較低的缺點。 在參閱圖式及隨後描述之實施方式後，該技術領域具有通常知 識者便可瞭解本發明之其它目的，以及本發明之技術手段及實施 態樣。 【實施方式】 以下將透過實施例來解釋本發明内容，本發明係關於一種用於 可撓性顯示裝置之觸控結構。關於實施例之說明僅為闡釋本發明 之目的，而非用以限制本發明。需說明者，以下實施例及圖式中， 與本發明非直接相關之元件皆已省略而未繪示；且圖式中各元件 間之尺寸關係僅為求容易瞭解，非用以限制實際比例。 第1圖係為利用本發明之觸控結構的可撓性顯示裝置1之示意 圖。可撓性顯示裝置1可如同報紙或書本一般，供使用者以手持 閱讀，其具有一可視面11a、至少一選單顯示區域12 —操作接觸 面13a以及一控制模組電路19。選單顯示區域12則位於可視面 11a上之至少一側邊。於第1圖中，則繪示有複數個選單顯示區域 12，這些選單顯示區域12係分別位於可視面11a之右側以及下 側。本發明並不限制選單顯示區域12設置於可視面11a的位置， 201027163 詳細來說，選單顯示區域12亦可設置於可視面lla之左側或上 側，以便於使用者於不同閱覽模式下’進行各式各樣的操作動作。 可視面lla可顯示一頁或多頁之資料，同時選單顯示區域12則 分別顯示不同功能之功能選單，例如「上一頁」、「下一頁」、「回 到目錄頁」及「更新」等功能。使用者只需使用姆指及食指，以 輕微之力量夾住可視面lla與操作接觸面13a上之選單顯示區域 12，即可執行相應之功能。 φ 本發明之第一實施例則如第2A圖及第2B圖所示，係為使用於 可撓性顯示裝置1之觸控結構la之示意圖。觸控結構la包含一 可撓性顯示面板11以及一觸控薄膜B。可撓性顯示面板11可以 是一前端層壓顯示面板（Front Plane Laminate ; FPL )、一電濕潤 顯示面板（Electro wetting Display)或是其它種類之具備可撓性特 性之顯示面板，其具有前段所述之可視面lla以及一第一可撓性 印刷電路板（Flexible Printed Circuit ; FPC) 17a。可撓性顯示面 板11即藉由第一可撓性印刷電路板17a與控制模組電路19電性 © 連接，以接收控制模組電路19之指令並於可視面lla上顯示各式 各樣的畫面。觸控薄膜13則包含一第一軟性基板14以及前段所 述之操作接觸面13a。相對於可視面lla，觸控薄膜13則設置於 可撓性顯示面板11之一背側❶藉由此種方式，可視面lla與操作 接觸面13a將分別設置於觸控結構ia之相對二端。於本實施例 中，第一軟性基板14之一側將作為觸控薄膜13之操作接觸面13a。 第一軟性基板14之操作接觸面na則設置有複數個感測元件 16、複數條金屬傳導線18以及一第二可撓性印刷電路板17b。該 201027163 等感測元件丨6則相應於選單顯示區域12而設置在操作接觸面13a 上。感測元件16係藉由金屬傳導線18與第二可換性印刷電路板 17b電性連接’並且可因應使用者之觸碰而產生一訊號。此一訊號 隨後將透過金屬傳導線18與第二可撓性印刷電路板17b，傳遞至 與第二可撓性印刷電路板17b電性連接之控制模組電路19。於本 實施例中，感測元件16係為一塵力感測器。如第1圖所示，當使 用者以一適當力量將姆指及食指失住任一個選單顯示區域12時， 相應之感測元件16即會因應所承受之壓力而產生訊號。 更詳細而言’感測元件16係為一利用壓阻效應之壓力感應電阻 式感測器（F〇rce Sensing Resistor ; FSR )’並藉由二金屬傳導線 18電性連接至第二可撓性印刷電路板17b。壓力感應電阻式感測 器於無壓力負載之狀況下，將具有一非常大之内部電阻值。然而 隨著負載壓力之增加，其内部電阻值會相應地下降。因此當使用 者未按壓或只是輕微觸碰感測元件16時，感測元件16即具有相 虽大之内部電阻值，而使所連接之二金屬傳導線丨8之間處於未導 通之狀態。反之’當使用者對感測元件16施加—按壓力量時，感 測疋件16之内部電阻值將會急速地下降，而使所連接之二金屬傳 導線18之間形成一導通之電路。藉此，感測元件16得以因應使 用者之觸碰而於感測元件16及第二可撓性印刷電路板17b之間產 生一電流，並以此作為觸碰之訊號。 第二可撓性印刷電路板17b將不同感測元件16所產生之觸碰信 號傳遞至控制模組電路19後，控制模組電路19可進一步判斷並 處理使用者所執行之一操作資訊。而根據這些各式各樣的操作資 201027163 訊’控制模組電路即可透過第-可挽性印刷電路板17a對可撓 顯卞面板11送出不同形式之畫面更新資訊。例如’當使用者按 壓上頁」之選單顯示區域12時，相應於「上一頁」之選單顯 示區域12的感測元件16即傳遞一信號，隨後控制模組電路19即 判斷出使用者係執行「上一頁」之功能，而使可撓性顯示裝置1 之可視面11a變換為顯示上一頁的畫面。 本發明之第二實施例則如第3A圖及第3B圖所示，係為使用於 φ可挽性顯示裝置1之觸控結構lb之示意圖。如同前段所述之第一 實施例，觸控結構lb亦包含一可撓性顯示面板u以及一觸控薄 膜13»可撓性顯示面板u同樣具有可視面lla以及一第一可撓性 印刷電路板17a»可撓性顯示面板u即藉由第一可撓性印刷電路 板17a電性連接至一控制模組電路”，以接收控制模組電路19之 指令並於可視面lla上顯示各式各樣的畫面。觸控薄膜13則設置 於可撓性顯示面板11之背面，並且具有一第一軟性基板14、位於 第一軟性基板14上之操作接觸面13a以及一第二可撓性印刷電路 © 板17b。相應於選單顯示區域12，複數個感測元件16係分別設置 於第一軟性基板14之一側。同時，這些感測元件16藉由複數條 金屬傳導線18電性連接至第二可撓性印刷電路板17b ;第二可撓 性印刷電路板17b則電性連接至控制模組電路19。 與第一實施例不同的是，在本實施例中，感測元件16、第二可 撓性印刷電路板17b以及金屬傳導線18係夾置於可撓性顯示面板 11以及第一軟性基板14之間，而其它各元件之功能則與第一實施 例相同，故在此不再予以贅述。 201027163 本發明之第三實施例則如第4A圖以及第4B圖所示，係為使用 於可撓性顯示裝置1之觸控結構之示意圖。觸控結構lc亦包 含一可撓性顯示面板11及一觸控薄膜13。可撓性顯示面板11同 樣具有可視面1 la以及一第一可撓性印刷電路板17a。可撓性顯示 面板11即藉由第一可撓性印刷電路板電性連接至控制模組電 路19,以接收控制模組電路19之指令並於可視面Ua上顯示各式 各樣的畫面。觸控薄膜13則包含一第一軟性基板14、一第二軟性 基板15、操作接觸面13a以及一第二可撓性印刷電路板nb。第 一軟性基板14係設置於可撓性顯示面板1及第二軟性基板15之 間。第二軟性基板15之一側係為該操作接觸面i3a ^相應於選單 顯示區域12，複數個感測元件16則分別設置於第一軟性基板14 上，並且藉由複數條金屬傳導線18電性連接至第二可撓性印刷電 路板17b;第二可撓性印刷電路板17b則電性連接至控制模組電路 19 〇 不同於第一實施例’本實施例之感測元件16、第二可撓性印刷 電路板17b以及金屬傳導線18係夹置於第一軟性基板14及第二 軟性基板15之間’而其它各元件之功能則與第—實施例相同，故 在此不再予以贅述。 綜上所述’本發明將觸控薄膜設置於可撓性顯示裝置之可視面 的後方。同時，相應於功能顯示區域，感測元件則設置於觸控薄 膜上。藉此，本發明之觸控結構不但具有結構簡單及製作容易之 優點’同時亦不會降低可撓性顯示裝置顯示之影像的亮度，進而 克服習知之觸控技術僅能使用於硬式基板且使用習知之觸控技術 201027163 的顯示裝置之影像亮度較低的缺點。 上述之實施例僅用來例舉本發明之實施態樣，以及闡釋本發明 之技術特徵，並非用來限制本發明之保護範疇。任何熟悉此技術 者可輕易完成之改變或均等性之安排均屬於本發明所主張之範 圍，本發明之權利保護範圍應以申請專利範圍為準。 【圖式簡單說明】 第1圖係為本發明之可撓性觸控裝置之示意圖； 0 第2A圖係為本發明·第一實施例之示意圖； 第2B圖係為本發明第一實施例之另一示意圖； ' 第3A圖係為本發明第二實施例之示意圖； 第3B圖係為本發明第二實施例之另一示意圖； 第4A圖係為本發明第三實施例之示意圖；以及 第4B圖係為本發明第三實施例之另一示意圖。 【主要元件符號說明】 I :可撓性顯示裝置 lb :觸控結構 II :可撓性顯示面板 12 :選單顯示區域 13a :操作接觸面 15 :第二軟性基板 17a :第一可撓性印刷電路板 18 :金屬傳導線 la :觸控結構 lc :觸控結構 11 a :.可視面 13 :觸控薄膜 14 :第一軟性基板 16 :感測元件 17b:第二可撓性印刷電路板 19 :控制模組電路 11The structure has the advantages of simple structure and easy fabrication, and does not affect the image brightness of the display device. B In order to achieve the above object, the present invention provides a touch structure. The touch structure comprises a flexible panel, at least a menu display area, a touch phase, and at least one sensing element. The ageable (four) panel has a visible surface. The at least - menu display area is located at least on the side of the visible surface. The touch film has a first-soft substrate and an operation contact surface, wherein the visible surface and the operation contact surface are disposed at opposite ends of the 201027163 touch structure. Finally, the at least one sensing component is disposed on at least one side of the first flexible substrate corresponding to the at least one menu area. In summary, the touch structure of the present invention has the advantages of simple structure and easy fabrication, and since the touch film is disposed behind the visible surface of the flexible display device, the flexible display device is not lowered. The brightness of the displayed image overcomes the shortcomings of the conventional touch technology that can only be used for a hard substrate and a display device using a conventional touch technology. Other objects of the present invention, as well as the technical means and embodiments of the present invention, will be apparent to those skilled in the art in view of the appended claims. [Embodiment] The present invention will be explained by way of embodiments, and the present invention relates to a touch structure for a flexible display device. The description of the embodiments is merely illustrative of the invention and is not intended to limit the invention. It should be noted that in the following embodiments and drawings, components that are not directly related to the present invention are omitted and are not shown; and the dimensional relationship between the components in the drawings is only for easy understanding, and is not intended to limit the actual ratio. . Fig. 1 is a schematic view of a flexible display device 1 using a touch structure of the present invention. The flexible display device 1 can be read by a user as a newspaper or a book, and has a visible surface 11a, at least one menu display area 12, an operation contact surface 13a, and a control module circuit 19. The menu display area 12 is located on at least one side of the visible surface 11a. In Fig. 1, a plurality of menu display areas 12 are shown, which are located on the right side and the lower side of the visible surface 11a, respectively. The present invention does not limit the position of the menu display area 12 on the visible surface 11a. 201027163 In detail, the menu display area 12 can also be disposed on the left side or the upper side of the visible surface 11a, so that the user can perform each in different viewing modes. Various kinds of operation actions. The visible surface 11a can display one or more pages of data, and the menu display area 12 displays function menus of different functions, such as "previous page", "next page", "back to directory page" and "update". And other functions. The user only needs to use the thumb and forefinger to clamp the visible surface 11a and the menu display area 12 on the operation contact surface 13a with a slight force to perform the corresponding functions. φ The first embodiment of the present invention is a schematic view of the touch structure 1a for the flexible display device 1 as shown in Figs. 2A and 2B. The touch structure 1a includes a flexible display panel 11 and a touch film B. The flexible display panel 11 can be a front end laminated display panel (Front Plane Laminate; FPL), an electrowetting display panel (Electro wetting display) or other types of display panels having flexible characteristics, which have a front section The visible surface 11a and a first flexible printed circuit (FPC) 17a are described. The flexible display panel 11 is electrically connected to the control module circuit 19 by the first flexible printed circuit board 17a to receive the command of the control module circuit 19 and display various types on the visible surface 11a. Picture. The touch film 13 includes a first flexible substrate 14 and an operation contact surface 13a as described in the preceding paragraph. The touch film 13 is disposed on the back side of the flexible display panel 11 with respect to the visible surface 11a. In this manner, the visible surface 11a and the operation contact surface 13a are respectively disposed at opposite ends of the touch structure ia. . In this embodiment, one side of the first flexible substrate 14 will serve as the operation contact surface 13a of the touch film 13. The operation contact surface na of the first flexible substrate 14 is provided with a plurality of sensing elements 16, a plurality of metal conductive lines 18, and a second flexible printed circuit board 17b. The sensing element 丨6 such as 201027163 is disposed on the operation contact surface 13a corresponding to the menu display area 12. The sensing element 16 is electrically connected to the second replaceable printed circuit board 17b by the metal conductive line 18 and can generate a signal in response to a user's touch. The signal is then transmitted through the metal conductive line 18 and the second flexible printed circuit board 17b to the control module circuit 19 electrically connected to the second flexible printed circuit board 17b. In this embodiment, the sensing element 16 is a dust sensor. As shown in Figure 1, when the user loses the thumb and index finger to any of the menu display areas 12 with an appropriate force, the corresponding sensing element 16 will generate a signal in response to the pressure experienced. In more detail, the sensing element 16 is a pressure sensing resistance sensor (FSR) using a piezoresistive effect and is electrically connected to the second flexible by a two-metal conductive line 18. Printed circuit board 17b. The pressure-sensing resistive sensor will have a very large internal resistance value under no-load conditions. However, as the load pressure increases, its internal resistance will decrease accordingly. Therefore, when the user does not press or only slightly touches the sensing element 16, the sensing element 16 has a relatively large internal resistance value, so that the connected two metal conducting wires 8 are in a non-conducting state. On the other hand, when the user applies a pressing force to the sensing element 16, the internal resistance of the sensing element 16 will drop rapidly, and a conductive circuit is formed between the connected two metal wires 18. Thereby, the sensing element 16 generates a current between the sensing element 16 and the second flexible printed circuit board 17b in response to the user's touch, and uses this as a touch signal. After the second flexible printed circuit board 17b transmits the touch signals generated by the different sensing elements 16 to the control module circuit 19, the control module circuit 19 can further determine and process one of the operation information performed by the user. According to these various operating elements, the control module circuit can send different forms of picture update information to the flexible display panel 11 through the first-releasable printed circuit board 17a. For example, when the menu display area 12 of the user presses the previous page, the sensing element 16 corresponding to the menu display area 12 of the "previous page" transmits a signal, and then the control module circuit 19 determines the user system. By performing the function of "previous page", the visible surface 11a of the flexible display device 1 is converted into a screen for displaying the previous page. The second embodiment of the present invention is a schematic view of the touch structure lb used for the φ pullability display device 1 as shown in Figs. 3A and 3B. As in the first embodiment, the touch structure lb also includes a flexible display panel u and a touch film 13» the flexible display panel u also has a visible surface 11a and a first flexible printed circuit. The board 17a»the flexible display panel u is electrically connected to a control module circuit by the first flexible printed circuit board 17a" to receive the command of the control module circuit 19 and display various types on the visible surface 11a. The touch film 13 is disposed on the back surface of the flexible display panel 11 and has a first flexible substrate 14, an operation contact surface 13a on the first flexible substrate 14, and a second flexible printing. Circuit board 17b. Corresponding to the menu display area 12, a plurality of sensing elements 16 are respectively disposed on one side of the first flexible substrate 14. At the same time, the sensing elements 16 are electrically connected to the plurality of metal conductive lines 18 to The second flexible printed circuit board 17b is electrically connected to the control module circuit 19. The first embodiment is different from the first embodiment, in the embodiment, the sensing element 16, Second flexible printed circuit board 17 b and the metal conductive line 18 are interposed between the flexible display panel 11 and the first flexible substrate 14, and the functions of the other components are the same as those of the first embodiment, and therefore will not be described herein. The third embodiment is a schematic view of the touch structure used in the flexible display device 1 as shown in FIGS. 4A and 4B. The touch structure lc also includes a flexible display panel 11 and a touch. Controlled film 13. The flexible display panel 11 also has a visible surface 1 la and a first flexible printed circuit board 17a. The flexible display panel 11 is electrically connected to the control by the first flexible printed circuit board. The module circuit 19 receives the command of the control module circuit 19 and displays various images on the visible surface Ua. The touch film 13 includes a first flexible substrate 14, a second flexible substrate 15, and an operational contact. a surface 13a and a second flexible printed circuit board nb. The first flexible substrate 14 is disposed between the flexible display panel 1 and the second flexible substrate 15. One side of the second flexible substrate 15 is the operational contact The face i3a ^ corresponds to the menu display area 12, The plurality of sensing elements 16 are respectively disposed on the first flexible substrate 14 and electrically connected to the second flexible printed circuit board 17b by a plurality of metal conductive lines 18; the second flexible printed circuit board 17b is Electrically connected to the control module circuit 19 is different from the first embodiment, the sensing element 16 of the present embodiment, the second flexible printed circuit board 17b, and the metal conductive line 18 are sandwiched between the first flexible substrate 14 and The function of the other components in the second flexible substrate 15 is the same as that of the first embodiment, and therefore will not be described herein. In summary, the present invention provides the touch film in the flexible display device. At the same time, corresponding to the function display area, the sensing element is disposed on the touch film. Therefore, the touch structure of the present invention not only has the advantages of simple structure and easy fabrication, and also does not reduce the brightness of the image displayed by the flexible display device, thereby overcoming the conventional touch technology and can only be used for a hard substrate. The shortcoming of the image brightness of the display device of the conventional touch technology 201027163 is low. The embodiments described above are only intended to illustrate the embodiments of the present invention, and to explain the technical features of the present invention, and are not intended to limit the scope of the present invention. Any changes or equivalents that can be easily made by those skilled in the art are within the scope of the invention. The scope of the invention should be determined by the scope of the claims. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view of a flexible touch device of the present invention; 0 FIG. 2A is a schematic view of a first embodiment of the present invention; FIG. 2B is a first embodiment of the present invention FIG. 3A is a schematic view of a second embodiment of the present invention; FIG. 3B is another schematic view of a second embodiment of the present invention; FIG. 4A is a schematic view of a third embodiment of the present invention; And Figure 4B is another schematic view of the third embodiment of the present invention. [Description of main component symbols] I: Flexible display device lb: Touch structure II: Flexible display panel 12: Menu display area 13a: Operation contact surface 15: Second flexible substrate 17a: First flexible printed circuit Board 18: metal conductive line la: touch structure lc: touch structure 11 a: visible surface 13: touch film 14: first flexible substrate 16: sensing element 17b: second flexible printed circuit board 19: Control module circuit 11

Claims (1)

201027163 七、申請專利範圍·· 1. 一種用於一可撓性顯示裝置之觸控結構，包含： 一可撓性顯示面板，具有一可視面； 至少一選單顯示區域，係位於該可視面之至少一側； 一觸控薄膜，具有一第一軟性基板及一操作接觸面，其 中，該可視面以及該操作接觸面係設置於該觸控結構之相對 二端；以及 至少一感測元件，相應該至少一選單顯示區域，設置於 該第一軟性基板上之至少一側。 © 2. 如請求項1所述之觸控結構，其中該第一軟性基板之至少一 侧係為該操作接觸面。 3. 如請求項1所述之觸控結構，該觸控薄膜更包含： 一第二軟性基板，係與該第一軟性基板形成一空間； 其中，該第二軟性基板之至少一側係為該操作接觸面， 該至少一感測元件係設置於該空間。 4. 如請求項3所述之觸控結構，更包含： Q 至少一可撓性印刷電路板（Flexible Printed Circuit ; FPC );以及 至少一金屬傳導線，係設置於該空間，用以連接該至少 一感測元件以及該至少一可撓性印刷電路板。 5. 如請求項4所述之觸控結構，其中，該至少一感測元件因應 一觸碰產生一訊號，該金屬傳導線用以傳輸該訊號至該至少 一可撓性印刷電路板。 6. 如請求項1所述之觸控結構，其中該至少一感測元件係為一 12 201027163 壓力感測器。 7. 如請求項1所述之觸控結構，其中該至少一感測元件係為一 壓力感應電阻式感測器（Force Sensing Resistor ; FSR ) 〇 8. 如請求項1所述之觸控結構，其中該可撓性顯示面板係為一 前端層壓顯示面板（Front Plane Laminate ; FPL )。 9. 如請求項1所述之觸控結構，其中該可撓性顯示面板係為一 電濕潤顯示面板（Electrowetting Display )。201027163 VII. Patent Application Range 1. A touch structure for a flexible display device, comprising: a flexible display panel having a visible surface; at least one menu display area located at the visible surface At least one side; a touch film having a first flexible substrate and an operation contact surface, wherein the visible surface and the operation contact surface are disposed at opposite ends of the touch structure; and at least one sensing element, Correspondingly, the at least one menu display area is disposed on at least one side of the first flexible substrate. The touch structure of claim 1, wherein at least one side of the first flexible substrate is the operational contact surface. 3. The touch control structure of claim 1, further comprising: a second flexible substrate forming a space with the first flexible substrate; wherein at least one side of the second flexible substrate is The operating contact surface, the at least one sensing element is disposed in the space. 4. The touch structure of claim 3, further comprising: Q at least one flexible printed circuit (FPC); and at least one metal conductive line disposed in the space for connecting the At least one sensing element and the at least one flexible printed circuit board. 5. The touch structure of claim 4, wherein the at least one sensing component generates a signal for a touch, the metal conductive wire for transmitting the signal to the at least one flexible printed circuit board. 6. The touch structure of claim 1, wherein the at least one sensing component is a 12 201027163 pressure sensor. 7. The touch structure of claim 1, wherein the at least one sensing component is a pressure sensing resistance sensor (FSR) 〇 8. The touch structure of claim 1 The flexible display panel is a front end laminated display panel (Front Plane Laminate; FPL). 9. The touch structure of claim 1, wherein the flexible display panel is an electrowetting display panel. ❹ 13❹ 13
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US8842077B2 (en) 2014-09-23
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EP2207079A2 (en) 2010-07-14

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